You could drive out the hinge pins and reinstall with new bushing/pin kits. The drivers door hinges have to be worn even if the latch post lifts and aligns the door when its closed. At 50 years use, the wear is there, no doubt about it. My passengers door needed hinge service about 3 years later than the drivers door.
You wouldn't want The typical ( door weight broke a large hole in the B-pillar at the post ) scenario a couple years later anyway.